Home / 18,845,839.80-28,268,759.70-12,873,871.80

Finding the Fourth Proportional to 18,845,839.80, 28,268,759.70 and 12,873,871.80

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Solution

The fourth proportional to 18,845,839.80, 28,268,759.70 and 12,873,871.80 is: 19,310,807.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,845,839.80 : 28,268,759.70 = 12,873,871.80 : x
  2. Step 2: Convert to fraction form
    18,845,839.80/28,268,759.70 = 12,873,871.80/x
  3. Step 3: Cross multiply
    18,845,839.80x = 28,268,759.70 × 12,873,871.80
  4. Step 4: Simplify right side
    18,845,839.80x = 363,928,388,322,806.50
  5. Step 5: Solve for x
    x = 363,928,388,322,806.50/18,845,839.80
  6. Step 6: Final answer
    x = 19,310,807.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.